Ireland: Kerry - Dublin - Cork - Waterford - Roscommon - Galway - Belfast
UK: London - Manchester - Newcastle - Cardiff - Liverpool
Reproduction: Fringed Water-lilys are able to reproduce prolifically by vegetative and sexual means. It can reproduce by seeds, stolons, rhizomes, or broken off leaves with part of a stem attached.
Seed production usually requires cross-pollination between the long- and short-styled floral morphs, but self-pollination may occur. The release of developed seeds occurs 32-60 days after flowering.
Fringed Water-lily Flower
Fringed Water-lily is an aquatic plant of the family Menyanthaceae native to Eurasia. It has floating leaves that support a yellow flowers with fringed petal margins.
The fruit is a capsule bearing many flattened seeds with stiff marginal hairs. It cannot grow in the shade and has to have a relatively deep body of water. Flowers bloom in July to September, while the seeds ripen from August to October.
How To Identify Fringed Water-lily?
Leaves: Frequently purplish underneath, with slightly wavy, shallowly scalloped margins.
Flowers: Bright yellow, 5-petaled and 3-4 cm in diameter.
Stem: Long branched stolons extending up to one metre or more that lie just beneath the waters surface.
Fringed Water-lily Nymphoides peltata ID Guide
Fringed Water-lily Infestation
Why Is Fringed Water-Lily A Problem?
The Fringed Water-lily is a very aggressive plant that is capable of rapid growth and spread which can displace native species, reduce biodiversity, limit recreation, diminish aesthetic value, and decrease water quality.
It is currently locally established in lakes and ponds in Ireland where it thrives in shallow (<1.5m deep) and nutrient rich waterbodies.
Sediment levels increase with increasing Fringed Water-lily abundance.
Fringed Water-lily - Invasive Species Information
What Is Fringed Water-lily - (Nymphoides peltata)?
Habitat: Aquatic. Ponds, slow moving fresh water.
Distribution in Ireland: Sparse distribution but locally abundant in some places.
Status: Established
Family name: Menyanthaceae
European Communities (Birds and Natural Habitats) Regulations 2011 non-native invasive plant species A-Z (Updated 2017)
There are currently 35 invasive plant species listed in the European Communities (Birds and Natural Habitats) Regulations (annex 2, Part 1)...
Click on a species from the following list to find out more regarding non-native species subject to restrictions under Regulations 49 and 50.
-
American Skunk-Cabbage - Lysichiton americanus
-
Brazilian Giant-Rhubarb - Gunnera manicata
-
Broad-Leaved Rush - Juncus planifolius
-
Cape Pondweed - Aponogeton distachyos
-
Cord-Grasses - Spartina (all species and hybrids)
-
Curly Waterweed - Lagarosiphon major
-
Dwarf Eel-Grass - Zostera japonica
-
Fanwort - Cabomba caroliniana
-
Floating Pennywort - Hydrocotyle ranunculoides
-
Fringed Water-Lily - Nymphoides peltata
-
Giant Hogweed - Heracleum mantegazzianum
-
Giant Knotweed - Fallopia sachalinensis
-
Giant-Rhubarb - Gunnera tinctoria
-
Giant Salvinia - Salvinia molesta
-
Himalayan Balsam - Impatiens glandulifera
-
Himalayan Knotweed - Persicaria wallichii
-
Hottentot-Fig - Carpobrotus edulis
-
Japanese Knotweed - Fallopia japonica
-
Large-Flowered Waterweed - Egeria densa
-
Mile-a-Minute Weed - Persicaria perfoliata
-
New Zealand Pigmyweed - Crassula helmsii
-
Parrots Feather - Myriophyllum aquaticum
-
Red Alga - Grateloupia doryphora
-
Rhododendron - Rhododendron ponticum
-
Salmonberry - Rubus spectabilis
-
Sea-Buckthorn - Hippophae rhamnoides
-
Spanish Bluebell - Hyacinthoides hispanica
-
Three-Cornered Leek - Allium triquetrum
-
Wakame - Undaria pinnatifida
-
Water Chestnut - Trapa natans
-
Water Fern - Azolla filiculoides
-
Water Lettuce - Pistia stratiotes
-
Water-Primrose - Ludwigia (all species)
-
Waterweeds - Elodea (all species)
-
Wireweed - Sargassum muticum
Non-Native Plant Species identified as High Risk on Ireland's Biodiversity List...
Common name
Species name
Fallopia x bohemica
Elodea canadensis
Prunus laurocerasus
Gunnera tinctoria
Spartina anglica
Lagarosiphon major
Hydrocotyle ranunculoides
Nymphoides peltata
Heracleum mantegazzianum
Fallopia sachalinensis
Impatiens glandulifera
Carpobrotus edulis
Undaria pinnatifida
Fallopia japonica
Crassula helmsii
Elodea nuttallii
Myriophyllum aquaticum
Rhododendron ponticum
Ludwigia grandiflora
Sargassum muticum
Environment
Terrestrial
Freshwater
Terrestrial
Terrestrial
Marine
Freshwater
Freshwater
Freshwater
Terrestrial
Terrestrial
Terrestrial
Terrestrial
Marine
Terrestrial
Freshwater
Freshwater
Freshwater
Terrestrial
Freshwater
Marine
Risk score
20
19
18
19
18
19
21
20
19
18
18
19
19
20
20
19
20
20
20
18